Alright, let's work through 4019 times 641 step by step
4019 × 641 = 641 × (4019)
+ 641 × 9 which equals 5769
+ 641 × 10 producing 6410
+ 641 × 000 giving us 0
+ 641 × 4000 that results in 2564000

= 2576179
